Remove unnecessary .toRx in ExampleUI.scala

[xerial]

No description provided.

[codecov]

Codecov Report

Merging #3265 (c63bc7a) into main (f45b410) will decrease coverage by 0.01%.
Report is 1 commits behind head on main.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3265      +/-   ##
==========================================
- Coverage   82.74%   82.74%   -0.01%     
==========================================
  Files         356      356              
  Lines       14839    14839              
  Branches     2411     2411              
==========================================
- Hits        12279    12278       -1     
- Misses       2560     2561       +1     

see 1 file with indirect coverage changes

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